CTN 032 was an NIH-funded study within the NIDA Clinical Trials Network (CTN); San Francisco DPH led the Intervention team for this multi-site study. To examine the benefits of offering rapid HIV testing with or without counseling in substance use treatment centers, 1281 participants at 12 different substance use treatment centers were randomized to one of three groups: in-house HIV testing with counseling; in-house HIV testing with information only; or referrral to community HIV testing.
The study was finished in December of 2009. CTN 032 found that participants in the two groups offering in-house testing were more likely to be tested and receive results than participants randomized into the off-site testing group. Results also showed that there were no differences in reported sexual risk behaviors between the three groups.